Abstract
This paper presents the experimental results of the thermoluminescent (TL) characteristics of synthetic hydroxyapatite (SHAp) obtained by the sol-gel method. For preparation of the SHAp powders, phosphorus pentoxide (P2O5) and calcium nitrate tetrahydrated (Ca(NO3)2-4H2O) were used. The powders obtained were submitted at different temperatures. The structural and morphological characterization were carried out using X-ray diffraction (XRD) and scanning electron microscopy techniques. TL glow curve exhibited two peaks centered at around 200°C and 300°C. TL response of SHAp as a function of gamma absorbed dose was linear over a wide dose range. Fading of the storage information in the samples irradiated was also studied. The experimental results show that the synthetic hydroxyapatite obtained by the sol-gel method may have used in gamma radiation dosimetry applications.
Original language | English |
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Pages (from-to) | 192-195 |
Number of pages | 4 |
Journal | Applied Radiation and Isotopes |
Volume | 83 |
DOIs | |
State | Published - Jan 2014 |
Keywords
- Gamma irradiation
- Sol-gel method
- Synthetic hydroxyapatite
- Thermoluminescence